Muffin pan



FIG. 1 is a perspective view showing the upper surface of the muffin pan according to the present invention.

FIG. 2 is a front elevational view of the muffin pan, the rear elevation view is a mirror image thereof;

FIG. 3 is a side elevational view of the muffin pan, the opposite side view is a mirror image thereof;

FIG. 4 is a top plan view of the muffin pan of FIG. 1.

FIG. 5 is a bottom plan view of the muffin pan of FIG. 1; and,

FIG. 6 is a cross-sectional view of the muffin pan of FIG. 1 taken along line 6—6 of FIG. 4. 

The ornamental design for a muffin pan, as shown and described. 